Match List I with List II and select the correct answer using the code given below the lists:
List I |
List II |
1. Heavy water |
(a) Bicarbonates of Mg and Ca in water |
2. Temporary hard water |
(b) No foreign ions in water |
3. Soft water |
(c) D2O |
4. Permanent hard water |
(d) Sulphates and chlorides of Mg and Ca in water |
Codes:
a. 1 – c, 2 – d, 3 – b, 4 – a
b. 1 – b, 2 – a, 3 – c, 4 – d
c. 1 – b, 2 – d, 3 – c, 4 – a
d. 1 – c, 2 – a, 3 – b, 4 – d